all good movies.
personally my fav graff movie is called 'infamy', search it on youtube and you can watch it for free.
it will give you an idea of the kind of people that write and really opens the culture up if you ask me.
another good movie is a movie called 'peice of mind' but has some how managed to stay away from the interent for several years.
also a movie comming out in jan called 'vigilante vigilante' looks pretty money.